常用json序列化/反序列化技术对比测试

 1     @Test
 2     public void testDeserialize() throws Exception {
 3         String dealer = "d:\\auto\\json\\100016109.js"; // 一个126k的json文件
 4         String content = FileUtils.readFileToString(new File(dealer));
 5 
 6         // 反序列化测试
 7 
 8         long start = System.currentTimeMillis();
 9         com.alibaba.fastjson.JSONArray array = com.alibaba.fastjson.JSONArray
10                 .parseArray(content);
11         long end = System.currentTimeMillis();
12 
13         System.out.println("com.alibaba.fastjson.JSONArray: " + (end - start));
14 
15         start = System.currentTimeMillis();
16         net.sf.json.JSONArray array2 = net.sf.json.JSONArray
17                 .fromObject(content);
18         end = System.currentTimeMillis();
19 
20         System.out.println("net.sf.json.JSONArray: " + (end - start));
21 
22         start = System.currentTimeMillis();
23         org.codehaus.jackson.map.ObjectMapper mapper = new org.codehaus.jackson.map.ObjectMapper();
24         List array3 = mapper.readValue(content, List.class);
25         end = System.currentTimeMillis();
26 
27         System.out.println("org.codehaus.jackson.map.ObjectMapper: "
28                 + (end - start));
29 
30     }

1         //读取json数组
2         JSONReader reader = new JSONReader(new FileReader("d:\\auto\\json\\100016109.js"));
3         reader.startArray();
4         while(reader.hasNext()){
5             VO vo = reader.readObject(VO.class);
6             //handle vo ...
7         }
8         reader.endArray();
9         reader.close();

        dependency>
            groupId>com.alibabagroupId>
            artifactId>fastjsonartifactId>
            version>1.1.39version>
        dependency>